function gundong(){
	var speed=25; //数字越大速度越慢
	var tabe=document.getElementById("demo");
	var tab1=document.getElementById("demo1");
	var tab2=document.getElementById("demo2");
	tab2.innerHTML=tab1.innerHTML;
	function Marqueee(){
    	if(tab2.offsetWidth-tabe.scrollLeft<=0)
    	tabe.scrollLeft-=tab1.offsetWidth;
    	else{
    		tabe.scrollLeft++;
    	}
    }
	var MyMar=setInterval(Marqueee,speed);
    tabe.onmouseover=function() {clearInterval(MyMar)};
    tabe.onmouseout=function() {MyMar=setInterval(Marqueee,speed)};
	}
	
function gundonga(){
var speeda=25; //数字越大速度越慢
var taba=document.getElementById("demoa");
var taba1=document.getElementById("demoa1");
var taba2=document.getElementById("demoa2");
	taba2.innerHTML=taba1.innerHTML;
	function Marqueea(){
    	if(taba2.offsetWidth-taba.scrollLeft<=0)
    	taba.scrollLeft-=taba1.offsetWidth
    	else{
    		taba.scrollLeft++;
    	}
    }
	var MyMara=setInterval(Marqueea,speeda);
    taba.onmouseover=function() {clearInterval(MyMara)};
    taba.onmouseout=function() {MyMara=setInterval(Marqueea,speeda)};
}